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Thieno[2,3-b]thiophene-2-carboxylic acid

Thieno[2,3-b]thiophene-2-carboxylic acid structure

CAS No.: 14756-75-3

Chemical Name:: Thieno[2,3-b]thiophene-2-carboxylic acid

Synonyms: Thieno<2,3-b>thiophen-2-carbonsaeure;2-Thieno[2,3-b]thiophenecarboxylic acid;Thieno[2,3-b]thiophene-2-carboxylic acid;thiopheneone[2,3-b]thiophene-2-carboxylic acid

CBNumber:: CB0245328

Molecular Formula:: C7H4O2S2

Molecular Weight:: 184.24

MDL Number:: MFCD00111552

MOL File:: 14756-75-3.mol

MSDS File:: SDS

Last updated:2026-09-12 18:48:00

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Thieno[2,3-b]thiophene-2-carboxylic acid Properties

Melting point	236 °C
Boiling point	389.5±22.0 °C(Predicted)
Density	1.601±0.06 g/cm3(Predicted)
storage temp.	2-8°C(protect from light)
pka	3.41±0.30(Predicted)
InChI	InChI=1S/C7H4O2S2/c8-6(9)5-3-4-1-2-10-7(4)11-5/h1-3H,(H,8,9)
InChIKey	JXHSGSLIUHNKRC-UHFFFAOYSA-N
SMILES	C12SC=CC=1C=C(C(O)=O)S2
CAS DataBase Reference	14756-75-3

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H315-H319

Precautionary statements

P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313

NFPA 704

	0
2		0

Thieno[2,3-b]thiophene-2-carboxylic acid price

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Matrix Scientific	307502	Thieno[2,3-b]thiophene-2-carboxylic acid	14756-75-3	100.00mg	$89	2026-05-19	Buy
Matrix Scientific	307502	Thieno[2,3-b]thiophene-2-carboxylic acid	14756-75-3	250.00mg	$113	2026-05-19	Buy
Matrix Scientific	307502	Thieno[2,3-b]thiophene-2-carboxylic acid	14756-75-3	1.00g	$243	2026-05-19	Buy
aablocks	AA007K26	Thieno[2,3-b]thiophene-2-carboxylic acid 95%	14756-75-3	100mg	$60	2026-05-28	Buy
aablocks	AA007K26	Thieno[2,3-b]thiophene-2-carboxylic acid 95%	14756-75-3	250mg	$90	2026-05-28	Buy

Product number	Packaging	Price	Buy
307502	100.00mg	$89	Buy
307502	250.00mg	$113	Buy
307502	1.00g	$243	Buy
AA007K26	100mg	$60	Buy
AA007K26	250mg	$90	Buy

Thieno[2,3-b]thiophene-2-carboxylic acid Chemical Properties, Uses, Production

Thieno[2,3-b]thiophene-2-carboxylic acid Preparation Products And Raw materials

Raw materials

Preparation Products

Thieno[2,3-b]thiophene

Thieno[2,3-b]thiophene-2-carboxylic acid Suppliers

Global Suppliers ( 52)

Supplier	Tel	Email	Country	ProdList	Advantage
Suzhou Heyi Biochemical Technology Co., Ltd.	18013943504 18013943504	iamdqgao@njtech.edu.cn	China	39	58
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Shanghai Ennopharm Co., Ltd.	+86 (21) 6435-5022		China	4263	65
Thermo Fisher Scientific	800-810-5118	cnchemical@thermofisher.com	China	17752	75
9ding chemical ( Shanghai) Limited	4009209199	sales@9dingchem.com	China	22497	55
Derthon Optoelectronic Materials Sci. Tech. Co., Ltd.	0755-26718755 13266723223	sales@derthon.com	China	1022	56
Suzhou Laing Biological Technology Co., LTD	0512-62968256 18550502935	export@laingbiotec.com	China	990	58
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd.	025-66028182 17714375163	yftan@aikonchem.com	China	16674	50
Zhengzhou Alfachem Co., Ltd.	0371-53765687 18937137882	3969243885@qq.com	China	7731	55
ShangHai Siyan Biological Technology Co., Ltd.	021-50908862，442785678，326799392 18721037013	siyansales@126.com	China	9612	58

Supplier	Advantage
Suzhou Heyi Biochemical Technology Co., Ltd.	58
J & K SCIENTIFIC LTD.	76
Shanghai Ennopharm Co., Ltd.	65
Thermo Fisher Scientific	75
9ding chemical ( Shanghai) Limited	55
Derthon Optoelectronic Materials Sci. Tech. Co., Ltd.	56
Suzhou Laing Biological Technology Co., LTD	58
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd.	50
Zhengzhou Alfachem Co., Ltd.	55
ShangHai Siyan Biological Technology Co., Ltd.	58

View Latest Price from Thieno[2,3-b]thiophene-2-carboxylic acid manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2020-01-10	THIENO[2,3-B]THIOPHENE-2-CARBOXYLIC ACID 14756-75-3		1KG	98%; 99%	500g；1kg; 25kg	Career Henan Chemical Co

THIENO[2,3-B]THIOPHENE-2-CARBOXYLIC ACID
14756-75-3
$0.01
98%; 99%
Career Henan Chemical Co

14756-75-3 (Thieno[2,3-b]thiophene-2-carboxylic acid) Related Search:

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2-Thieno[2,3-b]thiophenecarboxylic acid Thieno<2,3-b>thiophen-2-carbonsaeure thiopheneone[2,3-b]thiophene-2-carboxylic acid Thieno[2,3-b]thiophene-2-carboxylic acid 14756-75-3 C7H4O2S2